svg-flatten: add curve flattening tolerance command line param

This commit is contained in:
jaseg 2021-02-17 18:58:11 +01:00
parent f9c5c00f51
commit da9d7280d5
5 changed files with 19 additions and 13 deletions

View file

@ -110,14 +110,14 @@ static pair<bool, bool> path_to_clipper_via_cairo(cairo_t *cr, ClipperLib::Clipp
return {has_closed, num_subpaths > 1};
}
void gerbolyze::load_svg_path(cairo_t *cr, const pugi::xml_node &node, ClipperLib::PolyTree &ptree_stroke, ClipperLib::PolyTree &ptree_fill) {
void gerbolyze::load_svg_path(cairo_t *cr, const pugi::xml_node &node, ClipperLib::PolyTree &ptree_stroke, ClipperLib::PolyTree &ptree_fill, double curve_tolerance) {
auto *path_data = node.attribute("d").value();
auto fill_rule = clipper_fill_rule(node);
/* For open paths, clipper does not correctly remove self-intersections. Thus, we pass everything into
* clipper twice: Once with all paths set to "closed" to compute fill areas, and once with correct
* open/closed properties for stroke offsetting. */
cairo_set_tolerance (cr, 0.1); /* FIXME make configurable, scale properly for units */
cairo_set_tolerance (cr, curve_tolerance); /* FIXME make configurable, scale properly for units */
cairo_set_fill_rule(cr, CAIRO_FILL_RULE_WINDING);
ClipperLib::Clipper c_stroke;